From drones to smartphone apps, Indonesia is harnessing technology to tackle traffic chaos during the annual mass exodus before the Muslim Eid holiday, when the potholed roads of overpopulated Java become clogged with millions ...

At 4:35 a.m. each weekday, Stan Paul drives out of his Southern California suburb with 10 passengers in a van, headed to his job as an undergraduate counselor at the University of California, Los Angeles. Some 80 miles and ...

When the people whose houses hug the narrow warren of streets paralleling the busiest urban freeway in America began to see bumper-to-bumper traffic crawling by their homes a year or so ago, they were baffled.

When you're driving to work you wish you knew where the traffic jams will be. The same is true on the Internet, but network operators today can't observe or control the paths that carry data beyond the borders of their own ...

Three University of Texas at Arlington Computer Science and Engineering students have won a $10,000 prize in the NTx Apps Challenge for a smart traffic light network that adjusts traffic light schedules to make traffic flow ...

Giving up your own car and sharing one with other people instead – car sharing is the hot trend of the moment. But if it's going to succeed with electric vehicles, charging times need to be shorter and booking processes ...

British motorists who are too polite or timid in their driving style are the cause of lengthy traffic jams across the UK, particularly when faced with roadworks or lane closures, according to a leading Heriot-Watt research ...

At first glance, the cars look like they are performing an everyday manoeuvre. It is 12 November, and three cars are driving in a convoy on the motorway. The rear vehicle passes the middle vehicle and returns to the right ...

Traffic congestion

Traffic congestion is a condition on networks that occurs as use increases, and is characterized by slower speeds, longer trip times, and increased queueing. The most common example is the physical use of roads by vehicles. When traffic demand is great enough that the interaction between vehicles slows the speed of the traffic stream, congestion is incurred. As demand approaches the capacity of a road (or of the intersections along the road), extreme traffic congestion sets in. When vehicles are fully stopped for periods of time, this is colloquially known as a traffic jam.